"Come find me anytime you're sexually aroused..." As a virgin, I asked a married woman to take my virginity in a bath, only to find out she was my friend's mother, Ruka! Completely oblivious to the otherworldly pleasure, I went wild, ejaculating inside her! Ruka Aida ROE-411

Manabu harbors feelings for Ruka, the mother of his childhood friend Makoto. One day, in a moment of impulse, he confesses his love to her, only to be cruelly rejected. But his feelings don't disappear; instead, they overflow… To quell them, he musters his courage and goes to a bathhouse frequented by married women. There, he's introduced to Ruka herself! Embarrassed, he begs her to replace him, believing this is his last chance, and kneels down, pleading with her to take his virginity…